tag:blogger.com,1999:blog-360329120074358364.post3805340855288549511..comments2022-04-05T11:15:57.149+03:00Comments on Minimal: SICP: The 8 queens puzzleJurihttp://www.blogger.com/profile/01376742827133744974noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-360329120074358364.post-82514083665834862362019-09-23T10:49:35.219+03:002019-09-23T10:49:35.219+03:00Somehow it does not see that foldr function is def...Somehow it does not see that foldr function is defined. They might have renamed it into fold-right, look here: https://en.wikipedia.org/wiki/Fold_%28higher-order_function%29Jurihttps://www.blogger.com/profile/01376742827133744974noreply@blogger.comtag:blogger.com,1999:blog-360329120074358364.post-74044040605201510562019-09-19T16:30:21.174+03:002019-09-19T16:30:21.174+03:00Hi, I try to use your functions but got error when...Hi, I try to use your functions but got error when execute them in Scheme:<br />"""<br /><br />;Unbound variable: foldr<br />;To continue, call RESTART with an option number:<br />; (RESTART 3) => Specify a value to use instead of foldr.<br />; (RESTART 2) => Define foldr to a given value.<br />; (RESTART 1) => Return to read-eval-print level 1.<br />"""<br />And I have no clue WHY foldr IS unbouded.<br />Can you figure it out why?Frances Hehttps://www.blogger.com/profile/04731768440965548308noreply@blogger.com